Home / 12,447.24-18,626.97-7,769.44

Finding the Fourth Proportional to 12,447.24, 18,626.97 and 7,769.44

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Solution

The fourth proportional to 12,447.24, 18,626.97 and 7,769.44 is: 11,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.24 : 18,626.97 = 7,769.44 : x
  2. Step 2: Convert to fraction form
    12,447.24/18,626.97 = 7,769.44/x
  3. Step 3: Cross multiply
    12,447.24x = 18,626.97 × 7,769.44
  4. Step 4: Simplify right side
    12,447.24x = 144,721,125.80
  5. Step 5: Solve for x
    x = 144,721,125.80/12,447.24
  6. Step 6: Final answer
    x = 11,626.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.